Home / 26,190.60-36,155.94-20,515.56

Finding the Fourth Proportional to 26,190.60, 36,155.94 and 20,515.56

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Solution

The fourth proportional to 26,190.60, 36,155.94 and 20,515.56 is: 28,321.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,190.60 : 36,155.94 = 20,515.56 : x
  2. Step 2: Convert to fraction form
    26,190.60/36,155.94 = 20,515.56/x
  3. Step 3: Cross multiply
    26,190.60x = 36,155.94 × 20,515.56
  4. Step 4: Simplify right side
    26,190.60x = 741,759,356.43
  5. Step 5: Solve for x
    x = 741,759,356.43/26,190.60
  6. Step 6: Final answer
    x = 28,321.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.